animal disease vs disease

animal disease and disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
animal disease	Yes	No	No	No
disease	Yes	No	No	No

As nouns, disease is a hypernym of animal disease; that is, disease is a word with a broader meaning than animal disease:

animal disease (noun)	disease (noun)
a disease that typically does not affect human beings	an impairment of health or a condition of abnormal functioning